Cheap Flights from Washington (DCA) to Phnom Penh (PNH)

Popular airlines from Ronald Reagan Washington National Airport (DCA) to Phnom Penh Intl. Airport (PNH)

Alternative airports near Phnom Penh

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Techo Intl. Airport KTI. Cheapest option available. Flights from $1,224
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Frequently asked questions

How much does a flight from Ronald Reagan Washington National Airport (DCA) to Phnom Penh Intl. Airport (PNH) cost?
Lock in a cheap one-way flight or cheap return flight from Ronald Reagan Washington National Airport (DCA) to Phnom Penh Intl. Airport (PNH) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Ronald Reagan Washington National Airport (DCA) to Phnom Penh Intl. Airport (PNH)?
Planning your trip for can help you save, as it's the cheapest month for flights between DCA and PNH. You'll usually find the lowest fares during the off-season.
What is the cheapest airline that flies from Ronald Reagan Washington National Airport (DCA) to Phnom Penh Intl. Airport (PNH)?
To find the cheapest airline flying from DCA to PNH, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Ronald Reagan Washington National Airport (DCA) to Phnom Penh Intl. Airport (PNH)?
You'll have to catch a flight with a layover if you're traveling from Ronald Reagan Washington National Airport (DCA) to Phnom Penh Intl. Airport (PNH). There are no daily direct flights on this route. However, simply filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from DCA to PNH?
Typically you'll find the greatest selection of flight options on a Friday. Tuesdays are often the quietest.* But this can vary depending on the season, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Ronald Reagan Washington National Airport (DCA) to Phnom Penh Intl. Airport (PNH)?
To land at Phnom Penh Intl. Airport (PNH) on schedule, book a flight that leaves from Ronald Reagan Washington National Airport (DCA) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Ronald Reagan Washington National Airport (DCA) to Phnom Penh Intl. Airport (PNH) last-minute?
Waiting until just before your trip to book your flight from DCA to PNH often results in higher prices. While it's possible to find some last-minute discounts, they're not always guaranteed. Be flexible with your travel plans for the best chance of snagging a bargain.
Is it cheaper to book a DCA to PNH flight and hotel package?
You'll typically save money by booking a DCA to PNH flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. Once you've chosen your preferred accommodations and flights, you can add extras such as car rentals, activities and tours.
Can I cancel or change the date of my flight from Ronald Reagan Washington National Airport (DCA) to Phnom Penh Intl. Airport (PNH)?
In most cases, you can modify or cancel your DCA to PNH flight. However, there may be additional fees, especially if you booked more than 24 hours ago. Check your itinerary for the airline's fees and policies on flight changes, or if you need more details, go to our Customer Service portal.

Travel information

Origin airport
Ronald Reagan Washington National
Destination airport
Phnom Penh Intl.
Distance
8951 mi

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Washington to Phnom Penh Flights

The cheapest times to fly from Washington to Phnom Penh

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Washington to Phnom Penh are during the month of . You can find some of the cheapest flights from Washington to Phnom Penh with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Phnom Penh

Sunday is one of the best days to book for cheap flights from Washington to Phnom Penh: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Washington to Phnom Penh

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Washington to Phnom Penh in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Washington to Phnom Penh flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Washington to Phnom Penh airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Washington to Phnom Penh Flights

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*Available to One Key members.